... The best part? It would actually *work*. Not to mention that such a weapon (A Hilbert Field, IIRC) would probably be horribly useful against Daemons as well. Not that Orks need it, in fact they'd probably be upset that the really good fights are over sooner than usual...

While I object to the Emperor simply being sat on to end him by a huge ork... it was pretty funny :D

How'd they manage to get through, though? You'd think the Imperium would be good enough to be able to just barely keep the Orks back from Terra - from what my understanding of it is, all Imperium forces would rush back to Terra's orbit if the Orks were making good headway to crushing the Cradle of Humanity.